Ploog inking and Romita alteration credit per Nick Caputo, Jan 2011. Nick confirmed his credits when he saw the original art, which has Ploog's signature and the original face underneath Romita's paste over. Previous indexer credited Sal Buscema.
Stan Lee was credited on this story when it was reprinted in The Mighty World of Marvel (Marvel UK, 1972 series) #56.
Includes a house ad for Fantastic Four # 143.